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Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!lll-lcc!ames!amdahl!kim
From: kim@amdahl.UUCP
Newsgroups: comp.sys.amiga
Subject: Manx 3.40a ReportMouse bug.
Message-ID: <6028@amdahl.UUCP>
Date: Fri, 27-Mar-87 16:20:14 EST
Article-I.D.: amdahl.6028
Posted: Fri Mar 27 16:20:14 1987
Date-Received: Sat, 28-Mar-87 15:31:52 EST
Organization: Amdahl Corporation,  Sunnyvale, CA 94086
Lines: 53
Keywords: manx compiler bug reportmouse


[ Warning:  Foo(tm) is a Trademark of Fubar Co ... registration pending! ]

This was recently posted on our internal Amiga conference by
Rene Vega.  I've also emailed it to Jim at Manx (yo, Jim, we
going to have 3.40b by August?)

/kim


vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv

Found Bug in MANX 3.4a

I figured out why my program crashed the Amiga when compiled on MANX
version 3.4a.

It was (naturally) a MANX bug in their ReportMouse() interface routine.
Here's the fix:

;
;   This replaces the broken Intuition 1.2 routine supplied by MANX.
;   In the 3.4 version, someone coded the parameter move as:
;         movem.l  4(sp),d0/a0
;   which is reversed from the required order. Note also that movem
;   cannot be used to move a0/d0 because in control mode, movem just
;   doesn't work that way.
;
          public  _IntuitionBase
          public  _ReportMouse


;          void ReportMouse(window, boolean)
;                           A0      D0

_ReportMouse
          move.l   4(sp),a0
          move.l   8(sp),d0
          move.l   _IntuitionBase,a6
          jmp      -234(a6)

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^


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